Deep - refers to a shot that bounces near the baseline verses near the net

Deuce - when the score in a game is 40 to 40.

Deuce court - the right side of the court

Double Fault - two missed serves in a row. The server will lose the point.

Doubles - a tennis game played by four players, two per side of the court.

Down the line - hitting a tennis shot straight down the baseline

Drop shot - a strategy where the tennis player hits the ball just go over the net. It is used when the opponent is far from the net.

Drop volley - a drop shot from a volley

Fault - a service that is not in play.

First Service - the first of the two serves of a tennis ball a player is allowed. Generally the server will try a more difficult serve on the first service.

Flat - a shot with little to no spin

Follow through - the part of the swing after the ball is hit. A good follow through is important for accuracy and power.

Foot fault - when the server steps over the baseline while making a serve.

Forehand - a tennis swing where the player hits the tennis ball from behind their body. Often the forehand is the players best stroke.

Game point - one point away to win the tennis game.

Grand Slam - any one of the four most prestigious tennis tournaments including the Australian Open, the French Open, Wimbledon and the U.S. Open.

Groundstroke - a forehand or backhand shot made after the tennis ball bounces once on the court

Head - the top part of the racket that has the strings and is meant to hit the ball.

Hold - when the server wins the tennis game.

I-formation - a formation in doubled where the both players stand on the same side of the court prior to starting the point.

Jamming - to hit the tennis ball straight to the opponent's body not allowing them to extend the racquet to hit the ball well.

Kick serve - a serve with a lot of spin causing the ball to bounce high

Let - when the tennis ball from a service touches the net but still lands within the service box. The server gets another try as this does not count as a fault.

Lob - a tennis shot where the ball is lifted high above the net. Can be a defensive shot in some cases, but also may cause a winner when the ball is just out of reach of the opponent, but still lands in play.

Love - zero points in a tennis game.

Match point - when one tennis player only needs one more point to win the entire match

Out - any tennis ball that lands outside the area of play.

Passing shot - when the tennis ball is hit such that it passes by the opponent at the net without them being able to hit the ball.

Poaching - an aggressive strategy in doubles where the tennis player at net attempts to volley a shot hit to their partner on the baseline.

Tennis Racquet - the main piece of equipment in tennis. It has a long handle and a oval shaped head with a string mesh stretched across it. It is used by the tennis player to hit the ball.

Rally - when players hit the ball back and forth to each other while the ball is landing in play.

Set point - when a tennis player needs one point to win the set

Singles - a tennis game played by two players

Second Service - the second serve that the server is allowed after missing the first serve. This serve must be successful or the server will lose the point (called a double fault).

Serve - starts the point by the server hitting the tennis ball into the opponents half of the court

Serve and volley - a tennis strategy where the player serves and then charges forward to the net for a volley off of the return.

Spin - rotation of the tennis ball as it moves through the air. Skilled tennis players can control the spin and, therefore, the ball's trajectory and bounce

Straight sets - when one player wins every set in a match.

Topspin - when the tennis ball spins forward. This can cause it to bounce higher as well as dip down quickly.

Unforced error - a missed shot by a player that was not caused by any excellent play by their opponent.

Volley - a shot where the ball is hit by the player's racquet before the ball hits the ground.

Winner - an outstanding tennis shot that cannot be returned by the opponent.